Roller-bearing.



J. NEWMANN.

`ROLLER BEARING. APPLICATION FILED JAN. 18,1911.

Patented'Aug. 29, 1911.

JOHN NEWMANN, F BROOKLYN, NEWV YORK.

ROLLER-BEARING.

Specification of Letters Patent: Patented Ang. 29, 191.1.

Application inea January 1s, 1911. serial No. eoaaaaREISSUED To all 'whom 'it may concern:

Be it known that I, JOHN NEWMANN, a citizen of the United States of America, residing at Brooklyn. in the county of Kings and State of New York, have invented cer-` tain new and useful Improvements in Roller-Bearings, of which the followingl is a specification.

The present intention relates to roller bearings of the kind described in my Letters Patent, 969,763, and more particularly in my applications Ser. Nos. 566,47 6 and 586,930, and has for its object to further improvethe same, with the view of more 't5 simplifying the same and of rendering the manufacture of such bearings cheaper.

.lVlth this ob]ect in view, my invention consists of the construction, arrangement' and combination of parts as will hereinafter be more' fully specied.

In the accompanying drawing, which 4,forms a part of this specification, similar reference numerals denote corresponding parts and Figure 1 1s an end view partly broken away; Fig. 2 is a longitudinal section on line 2-.2 of Fig. l of a cylindrical roller bearing; Fig. 3 is a perspective view of one of the loose blocks interposed between e the rollers; Fig. 4 i's a perspective view of a 30 loose end block; Fig. 5 is a partial cross section in enlarged view, showing the end block in position; Fig. 6 is a cross section through one ofthe loose blocks showing the 4position of the rollers and balls relative thereto and SiS-Figs. 7 and 8 are an end view and vertical sectiony on line 8 8 of Fig. 7 respectively of a tapered roller bearlng slightly modified 1n construction.

The' roller bearing substantially is con- 40 structed on the same principle as th'at underlying my prior application, Ser. No. 566,476, i. e. it is composed of a casing or box, rollers, loose blocks interposedbetween y'the rollers and balls borne in said loose `"block s and projecting laterally outward toward the rollers.

When the box 1 is made of an integral piece, some difficulties have been experienced in assembling the parts, to wit, the

Ithem with onejanother. In my application 4'Sel'. No. 566,476, I provide in one of the end blocks, apartfrom the cross bore holding a ball, also a radial bore through which the latter may be subsequently inserted.;-

But this mode of construction has been bores.

found in many instances not to be entirely satisfactory. In my new roller bearing, the blocks 2 substantially are constructed in the same manner as in the abone named prior application, except that each block is yformed on its outer circumference with an outwar/dly proj ectingcentral shoulder or extension 2 of a suitable length. The lateral surfaces of these blocks and shoulders are concaved as at. 22 and there are cross bores 23 at the ends of the blocks to receive balls 5 which laterally project from within the said l is provided with a central annular groove 1 the width of which may be slightly larger I than the length of the central shoulder 2 of the blocks, and which is adapted to loosely engage the said shoulders. The rollers are each formed with a central enlarged portion 3 and reduced `ends 3', the central enlarged portion 3 being of a length corresponding to that of the width of the said annular groove 1\=of the box, so as to engage therewith and roll therein.

One of the end blocks is slightly modified in construction from the others. Such end block 4, which also has an outer extension 4 is in the center, at. both sides and at the length of the shoulder reduced in its thickness by milling, so that the parts 42 of the block extending beyond the shoulder, project from the concaved side surfaces of said central portion in form of shoulders. The central enlarged portion 3 of the rollers is adapted to engage between the said end portions of the end block when the parts are all assembled. The end portions 42 have cross bores 43 as the other blocks. but in addition thereto bores 44 made longitudinally of the blocks and terminating into said cross bores v43. These longitudinal bores 41 permit of the insertion of the balls into the cross bores .of the last block after all the parts are assembled in the box, so as to finally lock them surface of the central annular groove l', as

indicated at 7 (Fig. 5), allowing thus of ,suflcient play for said parts.

After all parts but the last roller` and last block are assembled in the box in the man- The inner circumference of the box i dhr'veri through said end bores 44 to clog thetlsa 50 blocks, rollers and balls, so asto interlock .ner described in my prior application, Ser.

block 4 and last roller having.been separately assembled are placed in position relative to this slightly displaced block 2 and all three members are forced into position through the still open space (as indicated by dottedlines in Fig. l). Owing to the reduction in the thickness of the central portion of the last block, the placing into position of these last three members is facilitated. The balls are thereupon inserted through the end bores 44 of said last block and the said bores clogged by the pins 45 to prevent the slipping out of said balls. By the introduction of the balls into the last block,l all the parts become eiiciently interlocked. The annular groove in the box prevents a lateral displacement of the blocks and rollers. The balls projecting sidewise from the blocks bear against the reduced ends of the rollers.

The same construction may be used for tapered roller bearings. However, in the example shown, the tapered bearing is shown as having a sectional box 8, z'. e. a cage constructed of two halves, which in. a suitable manner, as by bolts 9 or the like are secured to one another. When the box is made sectional for a cylindrical or tapered roller bearing, there is no necessity for a specially formed end block. In this case, all blocks l0 may bev made of uniform shape and conforming to the blocks 2 in the first example, as the members can be first assembled in one and then in the other half ofthe box and the two halves then assembled andjoined.

Having thus described the` nature of my invention, what I claim and desire to secure by Letters Patent is:

l. In a roller bearing of the character dey scribed, individual loose blocks, each having an outer extension, the lateral surfaces ofthe blocks and the extensions being concaved.

2. In a roller bearing of the character described, a box having on its inner circumference an annular groove, rollers adapted to bear in said groove and loose blocks interposed between said rollers, each block having an outer shoulder adapted to bear in said groove, the lateral surfaces of said blocks and the; shoulder ,thereof being concaved.

3. In a rollerbearing of the character de- .'scribed, a box having on its inner circumference an annular` groove, rollers, each having an enlarged portion bearing in said groove, loose perforated blocks interposed between said rollers, each block having an .outer shoulder adapted to bear in said groove, the lateral surfaces of said blocks and the shoulders thereof being concaved, and balls in the perforations of said blocks projecting laterally outward and bearing againstthe reduced ends hofsaid rollers.

4. In a roller bearing of the character described,ra block having cross bores and longitudinal bores terminating into the latter.

5. In a roller bearing of the character de-` scribed, ablock having an outer shoulder and a portion reduced 1n thickness, the lateral surfaces of' said block and the shoulder thereof being concaved.

6. Ina rollen bearing of the character described, a sectional box having on its inner Y circumference an annular groove, rollers having enlarged portions bearing in said groove, loose blocks interposed between said rollers, each block having an outer shoulder bearing in said annular groove, the lateral surfaces of said\` blocks and the shoulder thereof being concaved, and balls in the perforations of said blocks projecting laterally outward and bearing against the reduced portions of said rollers.

.In testimony whereof I ailixmy signature in presence of two witnesses.

JOHN NEWMANN.

\ Witnesses:

JOHN T. CARMODY, MAX D. ORDMANN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.'

Washington, D. C. 

